/*顶部样式*/
.top{
    line-height: 40px;
    background-color: black;
    font-size:20px;
    text-align: right;
}
.top a{
    color: white;
}

/*导航栏样式*/
.nav{
    line-height: 40px;
    font-family: 微软雅黑;
}

/*左部评论分享区样式*/
.left{
    float: left;
    width: 20%;
    text-align: center}
.left img{
    width: 38px;
    height: 38px;
}
.left span{
    vertical-align: 50%;/*垂直对齐*/
}
/*中间正文的div样式*/
.center{
    width: 60%;
    float: left;
}

/*右侧广告图片的div样式*/
.right{
    width: 20%;
    float: left;
}

/*底层超链接*/
.footer{
    clear: both;
    text-align: center;
    background-color: blue;
    line-height: 25px;
}
.footer a{
    color: white;
}
a{
    text-decoration: none;
    color: black;
}
/*超链接悬浮样式*/
a:hover{
    color: red;
}